BWSENSING BWH520
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BWH 520 High Precision Dual-Axis Voltage Output Inclinometer Technical Manual

High Precision Dual-Axis Voltage Output Inclinometer Introduction Designed by Bewis Sensing Technology LLC, BWH520 is a high precision dual-axis voltage output inclinometer with MEMS technology. It has a measuring range of ± 30° and the highest accuracy of 0.003°. It is a cost-effective product. The product has automatic compensation and filtering algorithms to reduce errors caused by environmental changes. This product adopts the principle of non-contact measurement. It measures the change of static gravitational field and converts it into angle change. The change directly outputs the...

BWH 520 High Precision Dual-Axis Voltage Output Inclinometer I Resolution: The measured minimum change value that the sensor can detect and resolve within the measurement range. Accuracy: The error between the actual angle and the Root mean square(RMS) of the measured angle of the sensor (>16 times). Bewis SensinglTechnologylLLC

High Precision Dual-Axis Voltage Output Inclinometer Mechanical Characteristic Connector Metal connector Protection level Shell material Magnesium alloy anodizing Package size Product Size：L103.8*W55.4*H26（mm） Bare plate product size Product size: L68*W48*H12(mm) Note: ±1mm error for length and width dimensions, please refer to actual size. 63 Bewis Sensing Technology LLC

High Precision Dual-Axis Voltage Output Inclinometer Installation direction The correct installation method can avoid measurement error. The following points should be made when installing the sensor: First of all, to ensure that the sensor mounting surface and the measured surface completely close, the measured surface should be as horizontal as possible, can not have the angle shown in Figure A and Figure C, the correct installation is shown in Figure B and Figure D. B uneven surface generates the angle D uneven surface generates the angle Secondly, the bottom cable of the sensor and the...

Elect ri cal connections Electrical interfaces Output Ground Cable color & Function Electrical interfaces ■•^RED VCC ■•^YELLOW TXD ■•^GREEN RXD Bewis SensinglTechnologylLLC

High Precision Dual-Axis Voltage Output Inclinometer Debug software Users can directly download serial assistant on official website (Supports-Download). You can also use more convenient and intuitive PC software. BWH520 supporting serial debugging software can be connected to the inclinometer on the computer for angle display. The software debugging interface is as shown in the figure below. Using the debug software, it can conveniently display the current X-direction tilt angle, and you can also modify and set other parameters by yourself. Software use steps: ① Correctly connect the...

BWH 520 High Precision Dual-Axis Voltage Output Inclinometer Protocol 1Data Frame Format： （8 data bits，1 stop bit，No parity check，default baud rate 9600） Identifier (1byte) Data (Nbyte) 0x77 Data Format: Hexadecimal(The following command interprets Table 0X as a hexadecimal identifier. You do not need to enter 0X, such as 0x77, you only need to enter 77.) Identifier: Fixed to 77 Frame Length: Length from Frame Length to Checksum（included） Address Code: Address of acquiring module, default 0x00 Data: Content and length variable according to Command Checksum: Sum of Frame Length, Address...

BWH 520 High Precision Dual-Axis Voltage Output Inclinometer Note: The data field is a 12-byte return angle value divided into three groups, each group being one sign bit and three compressed BCD codes. They are the X-axis angle, the Y-axis angle, and 0. For example:X axis: +2.0103°, Y axis: -0.5132° X axis: + 0002.0103°, Y axis: -00.5132° 77 10 00 84 00 02 010310 00 513200 00 00 002D Identifier fixed as 77 ▼ Data length fixed at 10 ▼ Address code set to 00 ▼ Command word fixed at 84 Y-axis angle: The format is the same as the X axis i r Retain data, fixed to four words: 00 00 00 00 X-axis...

High Precision Dual-Axis Voltage Output Inclinometer 0x00: absolute zero 0x01: relative zero Command response： Identifier (1byte) Note: absolute zero：Based on the factory-calibrated zero point. relative zero: Reference to the zero after the current installation. Command response： Identifier (1byte) 0x00: absolute zero 0xFF: relative zero Note: This command refers to whether the zero point reference used in the current state is relative zero or absolute zero. Command response： Identifier (1byte) 0x77 Note：For data, 00: 2400, 01: 4800, 02: 9600, 03: 19200，05: 115200，Default 02:9600. Note：Set...

BWH 520 High Precision Dual-Axis Voltage Output Inclinometer Identifier Frame Length Address Code Command Data (Ibyte) (Ibyte) (1byte) (1byte) (1 byte) 0x00: question and answer Mode Data Rate Data Rate Data Rate Data Rate Data Rate Data Rate Note: The default output mode is 00. When setting the 50Hz and 100Hz output frequencies, you need to adjust the baud rate to 115200. Command response: Note: If Save setting command is not executed, all setting will be invalid after power off. Bewis SensinglTechnologylLLC

High Precision Dual-Axis Voltage Output Inclinometer Command response： Identifier (1byte) Command response： Identifier (1byte)

High Precision Dual-Axis Voltage Output Inclinometer Executive standard ● Enterprise Quality System Standard: ISO9001:2008 Standard (Certificate No.10114Q16846ROS) ● CE certification (certificate number: 3854210814) ● RoHS (certificate number: G190930099) Bewis Sensing Technology LLC

High Precision Dual-Axis Voltage Output Inclinometer Wuxi Bewis Sensing Technology LLC Address: Building 30, No. 58 Xiuxi Road, Binhu District, Wuxi City, Jiangsu Province, China Tel/Whatsapp: +86 189 2129 2620 Email: support@bwsensing.com Website: www.bwsensing.com